tapCalcCPA calculator - description from Softdepia.com:

tApCalcCPA is a simple accounting and scientific calculator featuring a virtual paper tape. It includes standard calculator functions such as:

Memory functions

Sub-total, total, grand total

Mark-up, Mark-down

Thousand separator

Scientific operators

Support for all country specific number formats

Calculations recorded in tApCalcCPA paper tapes can be Saved in Palm Database.

Saved tapes can be Loaded, and extended with additional calculations, particularly helpful traveler that want to keep a running tab on expenses.

Tapes can be Edited to add labels to calculations, correct mistakes in numbers and operators, and the calculation redone using Run function. Helpful when there are mistakes in entering data for long calculations. You don Send mail to : info@softtrends.com

tapCalcCPA calculator is a "Free to try" program. You can download and try it for an evaluation period.